A compact and high-power silicon-wafer solar strip-cells-array module integrated with an array concentrator

A compact, low-cost and high-output-power silicon-wafer solar strip-cells-array module(SCAM) was experimentally demonstrated. The proposed SCAM consisted mainly of a silicon-wafer strip-cell sparse array and low-concentrationratio array concentrator based on an epoxy resin polymer(ERP) cylindrical plano-convex lens. A polymer replication process based on a polydimethylsiloxane mold was used to fabricate the ERP lens array concentrator. The results show that 46.94% of the silicon-wafer cell was saved in the designed SCAM. Moreover, the output power of the SCAM with a low concentration ratio of 8 suns was improved by 8.6%, compared with a whole piece of a conventional silicon-wafer solar cell with the same area as the module. The proposed method encapsulating solar cells provides a means to reduce the usage of silicon cells in modules as well as improving the output power of modules.     

磺酰氨基喹啉型水溶性锌离子荧光化学传感器的研究

将木糖与磺酰胺基喹啉通过还原胺化反应连接在一起,合成了一个水溶性锌离子荧光化学传感器(XSQ),通过光谱方法研究了XSQ对Zn2+的传感行为。结果表明,在4-羟乙基哌嗪乙磺酸(HEPES)缓冲溶液中,XSQ对Zn2+表现出高选择性响应,二者形成了2∶1的稳定配合物,此配合物在364nm紫外光照射下发射明亮的绿色荧光(522nm),除了Cu2+、Ni2+和Co2+对XSQ的Zn2+配合物有不同程度的荧光猝灭外,其他金属离子均无明显干扰。